Thank you so much! I managed to change the link to my name...
I set my title to FF Market (my font of choice), but it doesn't allow me the option of changing the font for the tagline and the menu - any ideas?
I hugely appreciate your help :)

At the moment, I'm simply copying and pasting the code at the bottom of my CSS Stylesheet editor. Is that the right thing to do? I had previously made some changes to the size of the title with this code

You didn't put what I told you to put. Do NOT give only the two typekit fonts. If something happens then the browser is going to toss whatever it wants into your site. I copied the font stack from the title so if the custom fonts don't happen to load, the site title and tagline will still look consistent.

Did you see the "!important" I had at the end of the font stack (list of fonts)? That has to be there to force the font we are specifying to override the font that was already applied (lemonade something or other).